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Now showing items 101-120 of 197
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(1989)While studying acritarchs from the Rudnyy Altay, we the authors discovered one cyst of a dinophyte alga whose structure provides evidence for its taxonomic membership in the order Dinophysiales. Morphologically, the cyst ...
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(1996)Oriented samples of the Lower Cambrian Bayan Gol Formation from Salaany Gol, Mongolia, were collected at roughly 5 m stratigraphic intervals for palaeomagnetic analysis. Progressive alternatingfield and thermal demagnetization ...
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(2002)The Omolon massif in northeastern Russia forms the core of the Kolyma-Omolon superterrane. The massif has an early Precambrian crystalline basement and is surrounded by the Paleozoic shelf deposits of the Omulevka terrane ...
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(2001)Deformed thick Paleozoic sequences of the Ol’doi Terrane, sublatitudinally extended along the northern margin of the Amur Superterrane, are considered as fragments of a passive continental margin [2, 4]. To the north, along ...
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(2003)In the WNW-ESE Donbas fold belt (DF), inversion of 3500 microtectonic data collected at 135 sites, in Proterozoic, Devonian, Carboniferous, and Cretaceous competent rocks allowed reconstruction of 123 local stress states. ...
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(2001)The theory and use of geochemical modeling of the long-term carbon cycle and four paleo-PCO2 proxies are reviewed and discussed in order to discern the best applications for each method. Geochemical models provide PCO2 ...
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(2000)The development history of striate miospores is considered. These miospores appeared first by the end of the Silurian-the beginning of the Devonian. During the existence period of striate miospores that lasted more than ...
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(1998)In an effort to document the source of the parental melts to carbonatites, we have measured rare gases in 380 Ma carbonatites and associated mineral assemblages from the Kola Peninsula, eastern part of the Baltic shield ...
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(2003)This paper concentrates on the Pre-Mesozoic history of the Precaspian Basin representing more than half of the 20 km of its sedimentary thickness. We present the evolution of sediments deposited in the basin through time ...
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(2001)The Mongol-Okhotsk orogenic belt occupies a pivotal position among the Paleozoic orogenic belts of Central Asia, and at the same time is closely linked to the Mesozoic orogenic belts of the western Pacific framing. Recognition ...
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(2000)Crandallite group minerals from the Devonian bauxite deposit of Schugorsk, Timan, Russia, were studied by electron microprobe. Special attention was given to the distribution of the rare earth elements (REE). Of the A-site ...
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(2003)Rhenium and osmium elemental and isotopic data have been obtained for the two mafic–ultramafic hosted volcanogenic massive sulphide (VMS) deposits of Dergamish and Ivanovka from the south Urals. The associated ophiolitic ...
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(2004)Athyrisinine brachiopods from the Upper Silurian of Russia and the Lower–Middle Devonian of China and north Vietnam include over 70 species belonging to Athyrisina and Parathyrisina; generic and subfamilial diagnoses are ...
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(2003)Correlation and synthesis of published and new structural, paleomagnetic, geochronological, and paleogeographic data from the Altai-Sayan and East Kazakhstan orogenic areas in Central Asia show an important role of strike-slip ...
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(1989)The Kiya alkalic pluton lies on the western part of the Yenisey Ridge at the center of the Chernorechensk graben. It is confined to a zone of intersecting deep faults with northwest and northeast strikes. For isotopic ...
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(2001)The sculpture of scales and plates of articulated anaspids from the order Birkeniida is described and used to clarify the position of scale taxa previously left in open nomenclature. The dermal skeleton of a well-preserved ...
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(2001)During the past 10 years, the Paleozoic Urals mountain belt has been the subject of internationally based, deep seismic, and ancillary geologic studies aimed at improving our knowledge of the lithospheric evolution of the ...
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(1996)The modern substantiation of the boundaries in the Phanerozoic scale of geologic time is discussed with reference to absolute geochronology. The critical analysis of the isotopic-geochronologic data that form the basis of ...
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(2002)Devonian and Lower Carboniferous deposits of the southern part of the Siberian platform (the Angara River region) are considered in this paper. Lithologic description and paleontological characteristics of all Devonian and ...
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(2001)The southern Urals of Russia contain a well-preserved example of a Paleozoic arc-continent collision in which the intraoceanic Magnitogorsk volcanic arc and its forearc basin sediments accreted to the East European Craton ...
Now showing items 101-120 of 197